Induction-coil



,6. PEPLIM'SKI.

INDUCTION COIL.

APPLlc/xxore mm 00117. 1919.

UNITED STA TES Pari-:NT4 OFFICE.

AGLEN PEPLINSKI, or MoHAWK,l NEW YORK.

INDUCTION -C OIL.

To all whom t may concern:

Be 1t known that I, GLEN PEPLINSKI, a citizen of the United States, residing at 'Mohawk, in the 'county of Herkimer and-State of New York, have invented new and useful Improvements in Induction-Coils, of which the following is a specification.

The object of my present 'invention is the provision of aninduction coil that is, at once, highly efiicient in practice and simple and compact in construction.

To the attainment of the foregoing the in- Vention consists in an induction coil having for its salient feature the arrangement of the primary and secondary coils side by side in annular form about a. common core, so that the coils are arranged in close proximity to each other and large surfaces of the coils are exposed to magnetic action.

The invention also consists in the peculiar combinations and adaptation of parts as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure l is a side elevation oan induction coil constructed in accordance .with my invention;

Fig. 2 is a diametrical section of same.

Fig. 3 is an end elevation of the induction coil.

Similar-numerals of reference designate corresponding parts in all of the views of the drawings. Y

By particular reference to Fig. 2, it will be readily appreciated that my novel induction coil comprises a core l tha-t is preferably made up of a bundle of soft-iron wires. Surrounding the core l are annular spaced heads 2 provided to retain the coils in place. At the inner side of each head 2 is a mag-A netic member 3 formed by av plurality of sheet iron plates. Intermediate of the saidmagnetic members 3 and spaced apart are insulating annular members 4 preferably of fiber. At the points 5 are three sections of primary coils, the said sections being connected in series and having their terminals disposed at one end of the induction coil. The members 3 are, of course, insulated from the adjacent primary coils 5. Intermediate of the primary coils 5 and electrically insulated therefrom by the insulating'members i vare two sections 6 of secondary coils.

.S i rlhese sections 6 are connected in series. and

their terminals are preferably disposed at the opposite and' of tia@ induction coil.

Specification of Letters Patent. Patentd NGV, 29, 1921, Application filed October 17, 1919. Serial No. i

even diameter, so as to afford a smooth sur` face, and over such surface is placed insulation 7; the said insulation being preferably formed' by a plurality of layers of Empire cloth, tape or other insulating material suitable to the purpose- Surrounding the said insulation 7 is a layer of soft-iron wire 8, which serves in conjunction with the magnetic members 3 to complete the magnetic circuit with a view to utilizing all of the secondary coil. The said magnetic members 3 and 'auxiliary coil 8, also serve for the conduction of magnetism from parts of the primary coils or coil sections 5 which are not in direct connection with thesecondary. coil sections to the otherwise uncharged portion of the secondary coils or coil sections close to 'the' core, which renders feasible a comparatively small amount of wire in the secondary, and enables the secondary to come under the full magnetic influence of the core. This.

contributes to the eiiciency of my novel induction coil, and the said eliciency is also coil sections is also advantageous because it contributes to the facility with which the induction coil may be constructed and the facility with which repairs may be made having to do with either primary coil sections or secondary coil sections; it being unnecessary to uncoil the secondary coil sections in order to gain access to the primary coil sections. i

Having described invention, what I claim and vdesire to secure by Letters-Patent, is:

l. All induction coil comprising a core and and the secondary Vthe primary coil sections and an auxiliary coil of magnetic material surrounding` and l insulated from the primary and secondary coilsections and extending adjacent to the Y magnetic members; said auxiliary coil formH ing a part of the magnetic circuit.

2. An' induction coil comprising a core, spaced heads thereon7 annular magnetic members on the core and'at the inner sides of the heads, primary coil sections surrounding the core with the outer of said sections adjacent to the magnetic members and also i with the sections ccnnected iii series, secondary coil sections surrounding the core intermediate of and alongside the primary Coil 'sections and connected in series, annular insulating` members on the core and separating the primary coil sections andthe secondary coil sections; said magnetic members. coil sections and insulating members being of even diameter, insulation surrounding the same, and an auxiliary coil of magnetic material surrounding' said insulation and extending adjacent to the magnetic members; the said auxiliary coil forming part ofthe magnetic circuit.

In testimony whereof I alii); my signature.

` GLEN PEPLINSK. 

